A timely review is beneficial to all. So, here’s the long-awaited sequel of my old post about...
Learn Electronics
Optical Needle Deflection Sensor
Sometimes you may want to detect the deflection of the needle of an instrument by a non-contact...
Arduino Analog Sensor – Read & Display
Arduino provides a number of analog inputs which enables us to measure parameters such as voltage...
Arduino Touch Sensor/Capacitive Proximity Sensor
A capacitive proximity sensor is a non-contact device that can detect the presence or absence of an...
MAX30100 Pulse Oximeter & Heart Rate Sensor Module – Quick...
The moment you get a MAX30100 pulse oximeter and heartrate sensor breakout board, you can move on...
Arduino PCM Audio Primer
In this primer, we’ll learn how to play an audio file thru Arduino without using any external...
BPW34 Tiny Solar Cell – Quick Revision!
Some small experiments on a cheapo soil meter I did recently remind me of the nostalgic photodiode...
12V SLA Battery Charger Guide
Recently, I had the opportunity to test the internal electronics of several popular Router UPS...
Foldback Current Limiting – Little Secrets
Wikipedia says Current Limiting is the practice of imposing a limit on the current that may be...
USB-C Power Delivery (USB-C PD) – Quick Explainer
USB-C Power Delivery (PD) is a standard that supports up to 100W of power! My first attempt in...